GB1156802A - Porous Polytetrafluoroethylene Sheets and their use in Electrodes for Free Electrolyte Fuel Cells - Google Patents

Porous Polytetrafluoroethylene Sheets and their use in Electrodes for Free Electrolyte Fuel Cells

Info

Publication number
GB1156802A
GB1156802A GB23711/66A GB2371166A GB1156802A GB 1156802 A GB1156802 A GB 1156802A GB 23711/66 A GB23711/66 A GB 23711/66A GB 2371166 A GB2371166 A GB 2371166A GB 1156802 A GB1156802 A GB 1156802A
Authority
GB
United Kingdom
Prior art keywords
fuel cells
electrolyte fuel
sheet
free electrolyte
electrodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23711/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB1156802A publication Critical patent/GB1156802A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inert Electrodes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1,156,802. Porous fibrillated P.T.F.E. sheets. AMERICAN CYANAMID CO. 26 May, 1966 [9 June, 1965], No. 23711/68. Headings C3C and C3P. [Also in Divisions D1 and H1] The invention comprises a wettable porous unsintered substantially completely fibrillated P.T.F.E. sheet liquid impermeable under conditions normally present in free electrolyte fuel cells. The sheet may be prepared by mixing an aqueous dispersion of P.T.F.E. particles 0À05-1 microns in diameter with 60-99% polymethylmethacrylate; milling the mixture at 170-200‹ C., to form the fibrils; extruding it as a sheet; compressing it within the same temperature range at about 300 p.s.i.g; cooling; extracting the polymethylmethacrylate with acetone; washing with alcohol and deionized water and drying.
GB23711/66A 1965-06-09 1966-05-26 Porous Polytetrafluoroethylene Sheets and their use in Electrodes for Free Electrolyte Fuel Cells Expired GB1156802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46261565A 1965-06-09 1965-06-09

Publications (1)

Publication Number Publication Date
GB1156802A true GB1156802A (en) 1969-07-02

Family

ID=23837093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23711/66A Expired GB1156802A (en) 1965-06-09 1966-05-26 Porous Polytetrafluoroethylene Sheets and their use in Electrodes for Free Electrolyte Fuel Cells

Country Status (8)

Country Link
US (1) US3527616A (en)
JP (1) JPS4928030B1 (en)
BE (1) BE682325A (en)
DE (1) DE1571946A1 (en)
FR (1) FR1422542A (en)
GB (1) GB1156802A (en)
NL (1) NL6607671A (en)
SE (1) SE369006B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140473A (en) * 1983-05-23 1984-11-28 Fiat Auto Spa Electrically conductive filter paper and filter using such a paper

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877994A (en) * 1972-10-25 1975-04-15 Westinghouse Electric Corp Catalytic paste and electrode
US3943006A (en) * 1973-12-27 1976-03-09 Energy Research Corporation Method of making a fuel cell electrode
GB1486061A (en) * 1974-01-30 1977-09-14 Siemens Ag Hybrid cell electrode
US3977901A (en) * 1974-10-23 1976-08-31 Westinghouse Electric Corporation Metal/air cells and improved air electrodes for use therein
US5141522A (en) * 1990-02-06 1992-08-25 American Cyanamid Company Composite material having absorbable and non-absorbable components for use with mammalian tissue
JP2002246034A (en) * 2001-02-21 2002-08-30 Sony Corp Gas diffusion electrode body and its producing method, and electrochemical device
US20070105008A1 (en) * 2005-10-25 2007-05-10 Horizon Fuel Cell Technologies Pte. Ltd Thin film fuel cell assembly
CN105659412A (en) 2013-07-31 2016-06-08 奥克海德莱克斯控股有限公司 Method and electrochemical cell for managing electrochemical reactions
US20200161720A1 (en) * 2017-05-26 2020-05-21 Aquahydrex Pty Ltd Electrodes and electrochemical cells with efficient gas handling properties
EP3918112A4 (en) 2019-02-01 2022-10-26 Aquahydrex, Inc. Electrochemical system with confined electrolyte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL291215A (en) * 1961-04-06
NL132907C (en) * 1961-05-08 1900-01-01
US3348975A (en) * 1964-08-26 1967-10-24 American Cyanamid Co Process for preparing fuel cell electrode containing 45% of a waterproofing agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140473A (en) * 1983-05-23 1984-11-28 Fiat Auto Spa Electrically conductive filter paper and filter using such a paper

Also Published As

Publication number Publication date
JPS4928030B1 (en) 1974-07-23
NL6607671A (en) 1966-12-12
SE369006B (en) 1974-07-29
US3527616A (en) 1970-09-08
FR1422542A (en) 1965-12-24
DE1571946A1 (en) 1971-04-08
BE682325A (en) 1966-12-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees